
\begingroup
\centering
\begin{tabular}{lccccc}
   \toprule
    & \multicolumn{5}{c}{Phosphorus}\\
                           & (1)            & (2)           & (3)            & (4)            & (5)\\  
   \midrule 
   ATT                     & 0.0545$^{***}$ & 0.0386$^{**}$ & 0.0567$^{***}$ & 0.0457$^{***}$ & 0.0311\\   
                           & (0.0095)       & (0.0162)      & (0.0180)       & (0.0167)       & (0.0229)\\   
    \\
   Dependent variable mean & 0.14981        & 0.15552       & 0.15788        & 0.16088        & 0.16708\\  
   Observations            & 81,586         & 8,579         & 8,189          & 7,763          & 6,493\\  
   Adjusted R$^2$          & 0.28884        & 0.40709       & 0.40880        & 0.40360        & 0.36849\\  
   Control Group           & NT             & NYT 2018      & NYT 2016-2018  & NYT 2014-2018  & NYT 2009-2018\\  
   \# HUC12                & 4,681          & 240           & 239            & 239            & 224\\  
   \# Control HUC12        & 4,441          & 11            & 33             & 47             & 106\\  
   \# Control Obs          & 72,878         & 422           & 1,172          & 1,434          & 2,043\\  
   \bottomrule
\end{tabular}
\par\endgroup


